CN219345151U

CN219345151U - Internal drag reduction steel pipe

Info

Publication number: CN219345151U
Application number: CN202223334171.7U
Authority: CN
Inventors: 刘明华
Original assignee: Shanghai Hongyuan Petrochemical Engineering Co ltd
Current assignee: Shanghai Hongyuan Petrochemical Engineering Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-07-14
Anticipated expiration: 2032-12-13

Abstract

The utility model belongs to the technical field of pipelines, and particularly relates to an internal drag reduction steel pipe, which comprises a steel pipe, pipe joint components, drag reduction inner plates and threaded rods, wherein a plurality of placing grooves are formed in one side of the steel pipe, the drag reduction inner plates are annularly and uniformly distributed in the placing grooves at intervals, the middle part of the outer side of the front end of each drag reduction inner plate is provided with a threaded rod, and the pipe joint components are arranged on the other side of the steel pipe. According to the utility model, the drag reduction inner plates and the threaded rods are arranged, the plurality of drag reduction inner plates are manually adjusted through the threaded rods to perform arc bending at a certain angle, so that the outlet of the steel pipe is enlarged and reduced, and meanwhile, the outlet and the inner wall of the steel pipe form a buffer arc slope, so that the resistance of the steel pipe is reduced or even eliminated, and a great drag reduction and energy saving effect is generated for pipeline transportation.

Description

Internal drag reduction steel pipe

Technical Field

The utility model belongs to the technical field of pipelines, and particularly relates to an internal drag reduction steel pipe.

Background

The drag reduction problem has been studied as early as the 30 s of the 20 th century and has progressed very rapidly, and so far, a number of drag reduction techniques have been developed, such as rib drag reduction, microbubble drag reduction, coating drag reduction, wall vibration drag reduction, additive drag reduction, joint drag reduction, and the like, and some successful applications have been achieved. However, due to the complexity of fluid movement, the drag reduction mechanism of many drag reduction techniques is not completely clear, and further improvement and development of drag reduction theoretical research is required, and in addition, although a considerable number of drag reduction schemes have been proposed at present, the drag reduction mechanism can be conveniently applied to practice and achieve a high drag reduction effect, and further development of ideas is necessary to develop new drag reduction techniques is not visible. The energy loss of the pipeline is mainly concentrated on the on-way resistance and the local resistance, the resistance reduction technology is developed and mature at present, the cost for changing the on-way resistance is also relatively high, and various accessories of the industrial pipeline, such as valves, bent pipes and branching channels suddenly enlarge or shrink the pipeline, so that a lot of local natural gas loss can be generated.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides an internal drag reduction steel pipe which is used for solving the problem that a great deal of local natural gas loss can be generated when the pipe is suddenly enlarged or reduced in the existing industrial pipeline.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides an interior drag reduction steel pipe, includes steel pipe, pipe joint subassembly, drag reduction inner panel and threaded rod, the standing groove has been seted up to inside steel pipe one side, the drag reduction inner panel is equipped with a plurality ofly, and a plurality of drag reduction inner panel annular even interval distributes in the standing groove, every drag reduction inner panel front end outside middle part all is equipped with the threaded rod, pipe joint subassembly sets up at the steel pipe opposite side.

Each drag reduction inner plate comprises a front arc-shaped plate, a rubber soft plate and a rear arc-shaped plate, the outer side of the rear arc-shaped plate is connected with the rear end of the placing groove, the rear end of the rubber soft plate is connected with the front end of the rear arc-shaped plate, the rear end of the front arc-shaped plate is connected with the front end of the rubber soft plate, and the middle part of the outer side of the front arc-shaped plate is correspondingly connected with the inner end of each threaded rod in a rotating mode.

A plurality of evenly spaced threaded holes are formed in the surface of one side of the steel pipe, and the outer end of each threaded rod correspondingly penetrates through the threaded holes and is connected with the threaded holes in a rotating mode.

Every the threaded rod outer end all is equipped with the rotation handle, every the rotation handle includes connecting rod, connecting axle and connection bull stick, the connecting rod lower extreme is connected with every threaded rod outer end, connection bull stick upper end one side is connected through the corresponding rotation of connecting axle with connecting rod upper end one side.

And one side of the lower end of each connecting rotating rod is provided with a clamping plate, one side of the middle end of each connecting rod is provided with a clamping block, and the other side of each clamping plate is correspondingly contacted and connected with the other side of the clamping block.

The pipe joint assembly comprises a sleeve, a supporting block, a screw rod, holding rods, connecting supports and connecting rotating shafts, wherein the front end of the sleeve is connected with the rear end of a steel pipe, a cavity is formed in the sleeve, a through hole is formed in the middle of the sleeve, the connecting supports are provided with a plurality of annular uniform interval pairs of the connecting supports are distributed on the outer side of the lower end in the sleeve, each connecting support is provided with a supporting block, the lower side of the front end of each supporting block is correspondingly and rotatably connected with the upper end of each connecting support through the connecting rotating shafts, each supporting block is provided with a screw rod, the lower end of each screw rod is correspondingly and rotatably connected with the upper side of the rear end of each supporting block through the connecting rotating shafts, each screw rod passes through the sleeve and is correspondingly and rotatably connected with the sleeve, and the holding rods are arranged at the upper end of each screw rod.

Compared with the prior art, the utility model has the following beneficial effects:

1. the drag reduction inner plates and the threaded rods are arranged, arc bending of a certain angle is carried out by manually adjusting the drag reduction inner plates through the threaded rods, and when the outlet of the steel pipe is enlarged and reduced, the outlet and the inner wall of the steel pipe form a buffer arc slope, so that the resistance of the steel pipe is reduced or even eliminated, and a great drag reduction and energy saving effect is generated for pipeline transportation;

2. the rotary handle is arranged, so that the plurality of drag reduction inner plates are driven to move manually, the reduction and the expansion of the pipe orifice are realized, and the pipe joint assembly is arranged, so that the quick and stable external connection pipeline is convenient.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of an inner drag reducing steel tube of the present utility model (view I);

FIG. 2 is a schematic perspective view of an embodiment of an inner drag reducing steel tube of the present utility model (view two);

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is a schematic perspective view of an embodiment of an inner drag reducing steel tube of the present utility model (view three).

Detailed Description

In order that those skilled in the art will better understand the present utility model, the following technical scheme of the present utility model will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1-4, the inner drag reduction steel pipe comprises a steel pipe 3, pipe joint components 1, drag reduction inner plates and threaded rods 4, wherein a placing groove 5 is formed in one side of the steel pipe 3, a plurality of drag reduction inner plates are arranged, the drag reduction inner plates are distributed in the placing groove 5 at equal intervals in a ring shape, the threaded rods 4 are arranged in the middle of the outer side of the front end of each drag reduction inner plate, and the pipe joint components 1 are arranged on the other side of the steel pipe 3.

Each drag reduction inner plate comprises a front arc plate 6, a rubber soft plate 7 and a rear arc plate 8, the outer side of the rear arc plate 8 is connected with the rear end of the placing groove 5, the rear end of the rubber soft plate 7 is connected with the front end of the rear arc plate 8, the rear end of the front arc plate 6 is connected with the front end of the rubber soft plate 7, and the middle part of the outer side of the front arc plate 6 is correspondingly connected with the inner end of each threaded rod 4 in a rotating mode. The drag reduction inner plate is provided with the front arc-shaped plate 6, is conveniently connected and fixed with the threaded rod 4, so that the rubber soft plate 7 is driven to bend, the rubber soft plate 7 is arranged, an arc-shaped inclined plane is formed conveniently when the drag reduction inner plate is contracted, the flow resistance is reduced, the rear arc-shaped plate 8 is arranged, and the drag reduction inner plate is conveniently connected and fixed with the steel pipe 3, so that the rear end of the rubber soft plate 7 is fixed.

A plurality of evenly spaced threaded holes 14 are formed in one side surface of the steel pipe 3, and the outer end of each threaded rod 4 correspondingly penetrates through the threaded hole 14 and is in rotary connection with the threaded hole 14. The steel pipe 3 is provided with a threaded hole 14, so that the fixed threaded rod 4 is convenient to install.

The outer end of each threaded rod 4 is provided with a rotary handle 2, each rotary handle 2 comprises a connecting rod 13, a connecting shaft 12 and a connecting rotating rod 15, the lower end of the connecting rod 13 is connected with the outer end of each threaded rod 4, and one side of the upper end of the connecting rod 15 is correspondingly and rotatably connected with one side of the upper end of the connecting rod 13 through the connecting shaft 12. The rotating handle 2 is provided with the connecting rod 13, is convenient to be connected and fixed with the threaded rod 4, is provided with the connecting rotating rod 15, and is convenient to manually drive the threaded rod 4 to rotate.

A clamping plate 16 is arranged on one side of the lower end of each connecting rotating rod 15, a clamping block 17 is arranged on one side of the middle end of each connecting rod 13, and the other side of each clamping plate 16 is correspondingly in contact connection with the other side of the clamping block 17. The connecting rod 15 sets up cardboard 16, and connecting rod 13 sets up fixture block 17, conveniently when not using, fixes connecting rod 15, prevents that connecting rod 15 from rocking.

The pipe joint assembly 1 comprises a sleeve 9, a supporting block 19, a screw rod 18, holding rods 10, connecting supports 21 and connecting rotating shafts 20, wherein the front end of the sleeve 9 is connected with the rear end of a steel pipe 3, a cavity is formed in the sleeve 9, through holes 11 are formed in the middle of the sleeve 9, the connecting supports 21 are arranged in a plurality of annular evenly-spaced pairs distributed on the outer side of the lower end inside the sleeve 9, the upper end of each connecting support 21 is provided with the supporting block 19, the lower end of the front end of each supporting block 19 is correspondingly and rotatably connected with the upper end of each connecting support 21 through the connecting rotating shaft 20, the upper end of each supporting block 19 is correspondingly and rotatably connected with the upper end of each supporting block 19 through the connecting rotating shaft 20, the upper end of each screw rod 18 penetrates through the sleeve 9 and is correspondingly and rotatably connected with the sleeve 9, and the holding rods 10 are arranged at the upper end of each screw rod 18. The pipe joint assembly 1 is provided with the sleeve 9, the supporting block 19, the screw rod 18, the holding rod 10, the connecting support 21 and the connecting rotating shaft 20 are fixed in a convenient installation mode, the connecting support 21 is arranged, the supporting block 19 is fixed in a convenient installation mode, the screw rod 18 and the holding rod 10 are arranged, the supporting block 19 is driven manually to rotate at an angle, and therefore a pipeline is supported tightly, and the pipeline is prevented from sliding.

The application method of the utility model comprises the following steps:

when the pipeline is contracted, a plurality of connecting rotating rods 15 are manually pulled open, the threaded rod 4 is driven to rotate through the connecting rotating rods 15, the threaded rod 4 drives the front arc-shaped plate 6 to move inwards, the front arc-shaped plate 6 drives the rubber soft plate 7 to be an arc-shaped inclined plane, the side surfaces of the plurality of rubber soft plates 7 are mutually attached to form a pipe orifice, and the pipe orifice is contracted.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. An internal drag reduction steel pipe, which is characterized in that: including steel pipe (3), pipe joint assembly (1), drag reduction inner panel and threaded rod (4), standing groove (5) have been seted up to inside steel pipe (3) one side, drag reduction inner panel is equipped with a plurality ofly, and is a plurality of drag reduction inner panel annular even interval distribution is in standing groove (5), every drag reduction inner panel front end outside middle part all is equipped with threaded rod (4), pipe joint assembly (1) set up at steel pipe (3) opposite side.

2. An inner drag reducing steel tube in accordance with claim 1, wherein: every drag reduction inner panel includes preceding arc (6), rubber soft board (7) and back arc (8), the back arc (8) outside is connected with standing groove (5) rear end, rubber soft board (7) rear end is connected with back arc (8) front end, preceding arc (6) rear end is connected with rubber soft board (7) front end, preceding arc (6) outside middle part is connected with the corresponding rotation of every threaded rod (4) inner.

3. An inner drag reducing steel tube in accordance with claim 2, wherein: a plurality of threaded holes (14) which are uniformly distributed at intervals are formed in the surface of one side of the steel pipe (3), and the outer end of each threaded rod (4) correspondingly penetrates through the threaded holes (14) and is connected with the threaded holes (14) in a rotating mode.

4. An inner drag reducing steel tube according to claim 3, wherein: every threaded rod (4) outer end all is equipped with rotates handle (2), every rotate handle (2) including connecting rod (13), connecting axle (12) and connection bull stick (15), connecting rod (13) lower extreme is connected with every threaded rod (4) outer end, connect bull stick (15) upper end one side and connecting rod (13) upper end one side through connecting axle (12) correspondence rotation connection.

5. An inner drag reducing steel tube in accordance with claim 4, wherein: and a clamping plate (16) is arranged on one side of the lower end of each connecting rotating rod (15), a clamping block (17) is arranged on one side of the middle end of each connecting rod (13), and the other side of each clamping plate (16) is correspondingly in contact connection with the other side of the clamping block (17).

6. An inner drag reducing steel tube in accordance with claim 5, wherein: the pipe joint assembly (1) comprises a sleeve (9), a plurality of supporting blocks (19), a screw rod (18), holding rods (10), connecting supports (21) and connecting rotating shafts (20), wherein the front end of the sleeve (9) is connected with the rear end of a steel pipe (3), a cavity is formed in the sleeve (9), through holes (11) are formed in the middle of the sleeve (9), the connecting supports (21) are arranged outside the lower end of the inner portion of the sleeve (9) in a plurality of annular uniform interval pairs, each supporting block (19) is arranged at the upper end of each connecting support (21), the lower side of the front end of each supporting block (19) is correspondingly connected with the upper end of each connecting support (21) in a rotating mode through the connecting rotating shafts (20), each supporting block (19) is provided with a screw rod (18), the lower end of each screw rod (18) is correspondingly connected with the upper side of the rear end of each supporting block (19) in a rotating mode through the connecting rotating shafts (20), and each screw rod (18) upper end of each screw rod (18) penetrates through the sleeve (9) and is correspondingly connected with the corresponding holding rods (10).